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Agronomía Costarricense
Article . 2010
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PROPAGAÇÃO CLONAL DE GUANANDI (Calophyllum brasiliense) POR MINIESTAQUIA

Authors: Luiz da Silva, Rogério; Liparize de Oliveira, Mila; Monte, Marco Antônio; Xavier, Aloisio;

PROPAGAÇÃO CLONAL DE GUANANDI (Calophyllum brasiliense) POR MINIESTAQUIA

Abstract

Guanandi (Calophyllum brasiliense) clonal propagation through minicuttings. The goal of this research was to determine guanandi (Calophyllum brasiliense) clonal propagation efficiency of hisforesty species through minicutting technique. A miniclonal garden was first established in sand beds, where new sprouts were produced for their use as minicuttings. Two experiments were performed in order to refine propagation protocols. The first experiment assessed the performance of 2 different types of minicuttings (apical and intermediate within the sprout) exposed to three IBA dosages (0, 2000, 4000, and 8000 mg.l-1). In the second experiment, minicuttings were sown in 3 different substrates (vermiculite, burned rice husk and decomposed pine-bark). Rooting percentages did not vary among treatments in the first experiment. In the second experiment, a greenhouse-permanency time reduction, under vermiculite substrate condition, was registered. As a general conclusion, the minicutting technique was an efficient strategy for guanandi clonal propagation.

Propagación clonal de guanandi (Calophyllum brasiliense) por miniestacas. El objetivo de este trabajo fue evaluar la eficiencia de la técnica de miniestaca para la propagación clonal de la especie forestal guanandi (Calophyllum brasiliense). Para esto, se estableció un minijardín clonal en cajas de arena, del cual se obtuvo brotes para utilizar como miniestacas, buscando hacer 2 experimentos: en un ensayo se evaluó 2 tipos de miniestacas (apical e intermedia) tratadas con diferentes dosis de acido indolbutírico (0, 2000, 4000 y 8000 mg.l-1); en el otro, las miniestacas fueros sembradas en 3 tipos de sustrato (vermiculita, cascarilla de arroz quemada y sustrato agrícola (corteza de pino compostada)). Los índices de enraizamiento no variaron en el primer ensayo; en el segundo, hubo una reducción en el tiempo de permanencia en invernadero usando vermiculita como sustrato. De manera general, la técnica de miniestaca es una eficiente estrategia para la propagación clonal de guanandi.

O objetivo deste trabalho foi avaliar a eficiência da técnica de miniestaquia para a propagação clonal de espécie floresta guanandi (Calophyllum brasiliensis). Formou-se um minijardim em canaletão de areia, o qual forneceu brotações para confecções das miniestacas visando a instalação de dois experimentos: em um ensaio avaliaram-se (ou se avaliou) dois tipos de miniestacas (apical e intermediária) tratadas com diferentes dosagens de ácido indolbutírico (0, 2000, 4000 e 8000 mg.l-1); em outro ensaio as miniestacas foram estaqueadas em três tipos de substrato (vermiculita, casca de arroz carbonizada e substrato agrícola (casca de pinus compostada)). Os índices de enraizamento não variaram no primeiro ensaio, já no segundo ensaio houve uma redução no tempo de permanência em casa de vegetação usando vermiculita como substrato. De modo geral, a miniestaquia mostrou-se uma eficiente estratégia para a propagação clonal de guanandi.

Country
Costa Rica
Keywords

miniestacas, S, Agriculture (General), propagación clonal, Agriculture, S1-972, clonal propagation, guanandi, propagação clonal, cedro maría, Minicutting, Miniestacas

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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